#container{
    width: 850px;
}
#cabecalho{
    width: 850px;
    height: 100px;
    background-color: #dcdcdc;
    border-bottom: 2px solid#000000;
}
#barralateral_esq{
    float: left;
    width: 155px;
    height: 390px;
    background-color: #80c8FE;
    border-right: 2px dashed #00248e;
}
#corpo{
    margin: auto;
}
#rodape{
    clear: both;
    background-color: #BFE3FE;
}

#nav, #nav *{
    margin: 0;
    padding: 0;
}

#nav{
    width: 10em;
    list-style: none;
}

#nav li a{
    display: block;
    border: 1px solid #ccc;
    margin-bottom: 2px;
    text-decoration: none;
        
}

*html ul li{float: left;}
*html #nav li a{height: 1%;}